li{
    display: inline-block;
    padding:  10px 175px 10px 175px;
    margin: 0px ;
    min-height: 2px;
    min-width: 107px;
    background-color: #888888;
    cursor: pointer;
    font-weight: bold;
    text-align: center;
}
a:hover{color: red;}
a{
    text-decoration: none;
}
body,ul{
    margin: 0;
}
table{
    border: solid 1px;
    border-collapse: collapse;
    max-width: 100%;
    margin: 30px auto;
    width: 73%;
    text-align: center;
}
tr:nth-child(3n){
    background-color: green;
    color: red;
}
tr:nth-child(3n+1){
    background-color: red;
    color: blue;
}
tr:nth-child(3n+2){
    background-color: blue;
    color: greenyellow;
}
p{
    text-align: center;
}
span{
    width: 125px;
    float: left;
    overflow-x: auto;
}
div img{
    width: 440;
    height: 260;
    box-shadow: 10px 10px 5px #888888;
    margin: 20px 0px;
    flex-direction: column;
    justify-content: space-between;
}
footer p{
    width: 100px;
    height: 0px;
    text-align: center;
    margin: 50px auto;
    background-color: red;
}
footer{
    display: block;
 background-color: red; 
 clear:both; 
 text-align: center;
 padding: 1px;
 color: #FFFFFF;
 min-height: 2px;
 min-width: 1440px;

}
div{
    min-width: 1400px;
    min-height: 200px;
}
form{
    text-align: center;
    margin-left: 3%;
}
th{
    font-size: 1em;
    padding: 5px 10px 5px 10px;
}
td{
    font-size: 1em;
}




